CVE-2004-0459

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2004-07-07 · updated 2026-06-16

Description

The Clear Channel Assessment (CCA) algorithm in the IEEE 802.11 wireless protocol, when using DSSS transmission encoding, allows remote attackers to cause a denial of service via a certain RF signal that causes a channel to appear busy (aka "jabber"), which prevents devices from transmitting data.

Affected products

IEEE 802.11 Wireless Protocol: all versions

References

http://archives.neohapsis.com/archives/fulldisclosure/2004-05/0631.html
http://securitytracker.com/id?1010152
http://support.avaya.com/elmodocs2/security/ASA-2004-009.pdf
http://www.auscert.org.au/render.html?it=4091
http://www.kb.cert.org/vuls/id/106678
http://www.osvdb.org/16034
http://www.securityfocus.com/bid/10342
https://exchange.xforce.ibmcloud.com/vulnerabilities/16138
http://archives.neohapsis.com/archives/fulldisclosure/2004-05/0631.html
http://securitytracker.com/id?1010152
http://support.avaya.com/elmodocs2/security/ASA-2004-009.pdf
http://www.auscert.org.au/render.html?it=4091

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